This writer is a limited writer. He was first made available as an event reward through a large-scale purification event and may be made temporarily available in future events as a special drop. No plans have been revealed to add this writer to the permanent summoning pool.
The following trivia is about the real author the character is based on. To see trivia of the character, click here (spoiler warning).
- Orikuchi studied history, folklore, and other traditions under Yanagita Kunio, and later established his own field of folklorism. 
- His tanka writings are distinct in their style of line breaks and punctuation, a convention not traditionally used in tanka poetry.  
- He was active under Araragiha from 1909 to 1921. Orikuchi then broke away from the group due to Saitou Mokichi's dissatisfaction with his aforementioned style of incorporating punctuation. 
- He took on Fujii Harumi as a student, then as a legally adopted son. Harumi was killed in World War II, leaving Orikuchi stricken with grief. 
- "Folk Beliefs in Modern Japan", Nobutaka Inoue, 1999.
- "Dawn to the West", Donald Keene, 1987.
- "Lineation of Tanka in English Translation", Hiroaki Sato, 1987.